Newbie, I need some quick help!!!

Well, I am ripping a segment from Fantasia 2000. I used DVD Decrypter. Now with that .vob file I created I went to go play it in powerdvd and I get no audio. So then I went to use a program called vobrator wich can change the numbers on the audio streams. Still nothing works. Can somebody help me? Does it have something to do with Disney's disk protection on the disk? I need to get video and audio as a vob. Thanks alot the newbie Treize.